The poet of the poem is an imaginary character, but it is possible to trace in this character some real traits of its creator. The passage beginning "I am made up of an intensest life" is certainly a piece of admirable self-portraiture; allusions here and there have a personal significance. In this earliest poem we see the germ of almost all the qualities (humour excepted) which mark Browning's mature work. Intensity of religious belief, love of music, of painting, and of the Greek classics; insight into nature, a primary interest in and intense insight into the human soul, these are already manifest. No characteristic is more interesting in the light of long subsequent achievement than the familiarity with Greek literature, shown not merely by the references to Plato and to Agamemnon, but by what is perhaps the finest passage in the poem, the one ending:--
"Yet I say, never morn broke clear as those On the dim clustered isles in the blue sea, The deep groves and white temples and wet caves: And nothing ever will surprise me now-- Who stood beside the naked Swift-footed, Who bound my forehead with Proserpine's hair."
The enthusiasm which breathes through whole pages of address to the "Sun-treader" gives no exaggerated picture of Browning's love and reverence for Shelley, whose _Alastor_ might perhaps in some respects be compared with _Pauline_. The rhythm of Browning's poem has a certain echo in it of Shelley's earlier blank verse; and the lyrically emotional descriptions and the vivid and touching metaphors derived from nature frequently remind us of Shelley, and sometimes of Keats. On every page we meet with magical touches like this:--
"Thou wilt remember one warm morn when winter Crept aged from the earth, and spring's first breath Blew soft from the moist hills; the black-thorn boughs, So dark in the bare wood, when glistening In the sunshine were white with coming buds, Like the bright side of a sorrow, and the banks Had violets opening from sleep like eyes;"
with lines full of exquisite fancy, such as those on the woodland tarn:--
"The trees bend O'er it as wild men watch a sleeping girl;"
and in one place we have a marvellously graphic description, extending over three pages, perhaps the most elaborately painted landscape in Browning's work. It seems like wronging the poem to speak of its _promise_: it is, indeed, far from mature, but it has a superb precocity marking a certain stage of ripeness. It is lacking, certainly, as Browning himself declares, in "good draughtsmanship and right handling," but this defect of youth is richly compensated by the wealth of inspiration, the keen intellectual and ethical insight, and the numberless lines of haunting charm, which have nothing of youth in them but its vigorous freshness.